About Tic Tac Toe
Tic Tac Toe is most people's first strategy game, and it still has teeth when the opponent plays perfectly. Line up three of your marks — across, down, or diagonally — before your rival does, on a board where one careless move decides everything.
Here you can spar with a mellow Easy computer, take on a Hard mode built on perfect minimax play that never loses, or pass the device for a two-player match on a single screen. The starting side alternates each round to keep things fair, a session scoreboard tallies the results, and keyboard players can fire moves with the 1–9 keys. Free in the browser on desktop, tablet, or phone.
How to play Tic Tac Toe
- Take turns placing X and O on the 3x3 grid; the starting side alternates from game to game.
- Make three in a row — horizontally, vertically, or diagonally — to win.
- Fill the board with no line of three and the game is a draw.
- Choose your opponent: Easy computer, Hard computer, or a second player sharing the screen.
- The session scoreboard tracks wins, losses, and draws while you play.
Controls
- Click or tap an empty square to place your mark.
- On a keyboard, press 1–9 to claim the matching square.
- Toggle between vs computer (Easy or Hard) and 2 players in the menu.
Tips & tricks
- Open in the center or a corner — edge squares are the weakest first moves on the board.
- Think in forks: any position that threatens two lines at once cannot be answered. Create them, and deny them.
- If your opponent opens in a corner, take the center; it is the one reply that keeps you fully safe.
- Against Hard, a draw is a perfect score — the computer never loses, so treat every tie as a passing grade.
Frequently asked questions
Can you beat the Hard computer in Tic Tac Toe?
No — Hard plays a perfect minimax strategy, and perfect play from both sides always ends in a draw. Drawing against it means you played flawlessly too. Easy is the mode that makes human mistakes.
Can two people play on one device?
Yes. Switch to two-player mode and take turns on the same screen — great for phones across a table. The session scoreboard keeps the running tally.
Who goes first in this Tic Tac Toe?
The starting side alternates every game, so neither X nor O hogs the first-move advantage across a session.
